[PATCH v3 01/11] drm/connector: let drivers declare infoframes as unsupported

Maxime Ripard mripard at kernel.org
Mon Sep 1 00:03:30 PDT 2025


On Sat, Aug 30, 2025 at 03:22:57AM +0300, Dmitry Baryshkov wrote:
> Currently DRM framework expects that the HDMI connector driver supports
> all infoframe types: it generates the data as required and calls into
> the driver to program all of them, letting the driver to soft-fail if
> the infoframe is unsupported. This has a major drawback on userspace
> API: the framework also registers debugfs files for all Infoframe types,
> possibly surprising the users when infoframe is visible in the debugfs
> file, but it is not visible on the wire.
> 
> Let drivers declare that they support only a subset of infoframes,
> creating a more consistent interface.
> 
> Acked-by: Liu Ying <victor.liu at nxp.com>
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov at oss.qualcomm.com>

I still don't think it's a good idea on principle, see my answer to your v2.

Maxime
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 273 bytes
Desc: not available
URL: <http://lists.infradead.org/pipermail/linux-rockchip/attachments/20250901/a7e4f432/attachment.sig>


More information about the Linux-rockchip mailing list